1MSD-1.1型残膜回收机关键部件设计与试验  

Design and test of key components of 1MSD-1.1 residual plastic film collector

作　　者：王文丽 毕方淇 李志 张立凯 宫玉敏 陈金利 Wang Wenli;Bi Fangqi;Li Zhi;Zhang Likai;Gong Yumin;Chen Jinli(Zibo Institute of Agricultural Machinery Research,Zibo,255086,China)

机构地区：[1]淄博市农业机械研究所,山东淄博255086

出　　处：《中国农机化学报》2023年第8期40-46,共7页Journal of Chinese Agricultural Mechanization

基　　金：2019年度淄博市重点研发计划(公益类专项)项目(2019gy010015)。

摘　　要：地膜覆盖栽培技术在我国应用广泛,由于不易回收,我国农田土壤中累积残留地膜超过100万吨,为提高回收效率,机械回收势在必行。针对土壤耕层陈旧残膜难回收问题,设计研发1MSD-1.1型残膜回收机,该机设计有两级地膜回收机构,分别回收表层地膜和深层残膜。对关键部件及参数进行设计和计算,根据设计预期,将残膜回收机前进速度、入土深度、滚筒式地膜捡拾机构转动速度作为试验因素,表层拾净率、深层拾净率、缠膜率作为目标值,进行3因素3水平的Box-Behnken试验,后采用Design-Expert优化作业参数,得到84.97%的表层拾净率、79.06%的深层拾净率、10.32%缠膜率的作业结果,并发现入土深度过大不利于残膜回收,作业前应首先确定作业区域残膜深度分布情况,以此确定作业参数。Plastic film mulching cultivation technology is widely used in China,but it is not easy to be collected.The accumulated residual plastic film in farmland soil in China has exceeded 1 million tons.In order to improve the collection efficiency,mechanical collection is imperative.Aiming at the problem that it is difficult to collect the old residual plastic film in the soil tilth,1MSD-1.1 residual plastic film collector was designed and developed.The machine was designed with a two-level residual plastic film collection mechanism to collect the surface film and deep residual film respectively.In this paper,the key components and parameters were designed and calculated.According to the design expectation,the forward speed of the collector,depth of the excavation,and the rotation speed of the drum type residual film pickup mechanism were taken as the test factors,and the surface cleaning rate,deep cleaning rate,and film wrapping rate were taken as the target values.The Box-Behnken test with three factors and three levels was conducted.After that,the operating parameters were optimized by Design-Expert.The optimal results was 84.97% surface cleaning rate,79.06% deep cleaning rate and 10.32% film wrapping rate.It was found that too much excavation depth was not conducive to the collection of residual film.Before operation,the distribution of residual film depth in the operation area should be determined first before the operation begins.

关 键 词：残膜回收机 表层回收率 深层回收率 缠膜率 田间管理机械 

分 类 号：S223.5[农业科学—农业机械化工程]